Benchmark: Interseção - MeasureThat.net

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Script Preparation code:

var colecao1 = [1, 2, 4, 9];
var colecao2 = [2, 3, 4, 12, 21];

Tests:

Lodash
_.intersection(colecao1, colecao2);
Filter
colecao1.filter(value => colecao2.includes(value));

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Lodash
Filter

Fastest: N/A

Slowest: N/A

Latest run results:

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Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):

LLMs can make mistakes. Check important info.

Measuring performance of JavaScript code is crucial for optimizing and scaling web applications.

**Benchmark Overview**

The provided benchmark measures the execution time of two approaches to find the intersection of two arrays in JavaScript: using Lodash's `_.intersection` function and filtering one array based on the presence of values in the other.

**Options Compared**

There are two options compared:

1. **Lodash's `_.intersection`**: This method takes two arrays as input and returns an array containing only the elements that are common to both input arrays.
2. **Filtering using `includes` method**: This approach iterates over one array and checks for each value if it exists in the other array using the `includes` method.

**Pros and Cons**

1. **Lodash's `_.intersection`**:
	* Pros: Efficient, concise, and easy to read.
	* Cons: Requires an additional library (Lodash), which may not be necessary for small projects.
2. **Filtering using `includes` method**:
	* Pros: Lightweight, no dependencies required.
	* Cons: More verbose, potentially slower due to the use of `includes` method.

In general, Lodash's `_.intersection` is a good choice when performance and readability are crucial, while filtering using `includes` might be suitable for smaller projects or projects with limited dependencies.

**Lodash Library**

Lodash is a popular JavaScript utility library that provides a wide range of functions to simplify common tasks. In this benchmark, Lodash's `_.intersection` function is used to find the intersection of two arrays efficiently.

**JavaScript Features and Syntax**

The benchmark does not explicitly use any special JavaScript features or syntax beyond standard ES6/ES7 syntax. However, it relies on the `includes` method, which is a built-in method in modern JavaScript engines (ECMAScript 2015+).

**Other Alternatives**

Besides Lodash's `_.intersection`, other approaches to find the intersection of two arrays might include:

* Using `Array.prototype.filter()` and checking for the presence of values using `Array.prototype.includes()`
* Implementing a custom implementation of the intersection algorithm
* Utilizing libraries like underscore.js or moment.js (not relevant in this case, as it's not about date calculations)

Keep in mind that performance optimizations should be tailored to specific use cases and requirements.

Related benchmarks:

Interseção (version: 0)

Minha Interseção

Comparing performance of: Lodash vs Filter

Created: 5 years ago by: Registered User

Jump to the latest result

Lodash

Filter

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):